WASHINGTON: The group of Russian hackers accused of meddling in the 2016 US presidential election earlier this year targeted the email accounts of Democratic state parties in California and Indiana, and influential think tanks in Washington and New York, according to people with knowledge of the matter.

The attempted intrusions, many of which were internally flagged by Microsoft Corp over the summer, were carried out by a group often nicknamed "Fancy Bear." The hackers' activity provides insight into how Russian intelligence is targeting the United States in the run-up to the Nov. 3 election.

The targets identified by Reuters, which include the Center for American Progress, the Council on Foreign Relations and the Washington-based Carnegie Endowment for International Peace, said they had not seen any evidence of successful hacking attempts.

Fancy Bear is controlled by Russia's military intelligence agency and was responsible for hacking the email accounts of Hillary Clinton's staff in the run-up to the 2016 election, according to a Department of Justice indictment filed in 2018.